Serving tray



FIG. 1 is an isometric view of the serving tray showing my new design;

FIG. 2 is a front elevational view thereof with the rear view being identical;

FIG. 3 is top elevational view thereof;

FIG. 4 is a right side view thereof with the left side view being identical;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is an enlarged sectional view for clarity taken along line 6-6 of FIG. 3. 

The ornamental design for a serving tray, as shown and described. 